One already posted his key for a web-of-trust in the making. Probably a better model for a small, opinionated community. I’ll also note it being a Ruby app makes me concerned about trusting it as a CA. If anything, we should do it Keybase-style where our Lobster’s comments/messages become one of many authenticated transports sharing the same credential to increase confidence in its authenticity. That could go right in the profile, though, with a machine-readable tag. That would maintain low noise in the threads.

EDIT: I forgot to add this is common with Keybase users on Hacker News. They put it at the bottom of their profile in brackets.